GB1096750A - Method of preparing ethylene copolymers - Google Patents

Method of preparing ethylene copolymers

Info

Publication number
GB1096750A
GB1096750A GB3252966A GB3252966A GB1096750A GB 1096750 A GB1096750 A GB 1096750A GB 3252966 A GB3252966 A GB 3252966A GB 3252966 A GB3252966 A GB 3252966A GB 1096750 A GB1096750 A GB 1096750A
Authority
GB
United Kingdom
Prior art keywords
catalyst
aluminium
copolymerization
temperature
ethylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3252966A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of GB1096750A publication Critical patent/GB1096750A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Copolymers of ethylene with even numbered alphatic alpha-olefins are made by contacting ethylene with an inert liquid reaction medium containing dissolved therein a catalytic system comprising (a) a compound of the formula MeR3- n Xn, wherein Me is aluminium, indium, or gallium, R is a hydrocarbon radical, X is halogen, and n is 1, 2 or 3, and (b) a transition metal, to form linear alpha-olefine oligmers, and continuing the process in the presence of an added copolymerization catalyst for the ethylene and alpha-olefin oligmers, said catalyst comprising either a transition metal compound other than (b), or a compound of the formula Me1R1n, where Me1 is Li, Na, K, Mg, Ca, Zn B, or Al, R1 is a hydrocarbon radical or an H atom and n is 1, 2, or 3, or an alkyl-aluminium hydride. The copolymerization catalyst may be generated from the catalyst system in the oligmerizing state by raising the temperature of the reaction mixture to 0 DEG to 120 DEG C., and continuing the copolymerization at this temperature. The temperature of the oligmer-forming stage may be - 50 to + 20 DEG C., and the preferred catalyst in this stage is ethyl aluminium sesquichloride and TiCl4. The added or formed copolymerization catalyst may be TiCl3, VOCl3, butyl lithium, (C2H5)3 Al, (C2H5)2 Al H, or tri-isobutyl aluminium. The product may be separated into fractions by extraction with ether.
GB3252966A 1965-07-27 1966-07-20 Method of preparing ethylene copolymers Expired GB1096750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1966465 1965-07-27

Publications (1)

Publication Number Publication Date
GB1096750A true GB1096750A (en) 1967-12-29

Family

ID=11160201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3252966A Expired GB1096750A (en) 1965-07-27 1966-07-20 Method of preparing ethylene copolymers

Country Status (2)

Country Link
GB (1) GB1096750A (en)
NL (1) NL147156B (en)

Also Published As

Publication number Publication date
NL6610559A (en) 1967-01-30
NL147156B (en) 1975-09-15

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